The rxe driver implements UD multicast support by cloning an incoming
request packet to give one each to the qp's that belong to the multi-
cast group. If there are N qp's in the group N-1 clones are created
and for each one a reference is taken to the ib device and a reference
is taken to the destination qp. This matches the behavior of non
multicast packets. The packet itself which already has a reference
to the ib device and the qp is given to the last qp.
Incorrectly, rxe_rcv_mcast_pkt() takes an additional qp reference
which is not needed and will prevent the qp from being destroyed
without an error timeout. This patch removes that qp reference.
Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
---
drivers/infiniband/sw/rxe/rxe_recv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_recv.c b/drivers/infiniband/sw/rxe/rxe_recv.c
index 434a693cd4a5..dd42c347301c 100644
--- a/drivers/infiniband/sw/rxe/rxe_recv.c
+++ b/drivers/infiniband/sw/rxe/rxe_recv.c
@@ -241,7 +241,6 @@ static void rxe_rcv_mcast_pkt(struct rxe_dev *rxe, struct sk_buff *skb)
rxe_rcv_pkt(cpkt, cskb);
} else {
pkt->qp = qp;
- rxe_get(qp);
rxe_rcv_pkt(pkt, skb);
skb = NULL; /* mark consumed */
}
--
2.37.2
